MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm, and SE_CLOUD_DOC_LURE points to impersonation of cloud services to trick users. The primary malicious IOC is the redirector URL, which is likely used to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Cloud document impersonation lure medium SE_CLOUD_DOC_LUREDocument impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/wb?keyword=pdf%20reader%20for%20ipad%201 In PDF document text
- http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.pdfIn PDF document text
- http://files.easternshorechess.com/uploads/1/3/1/3/131382531/guriperoforozige.pdfIn PDF document text
- http://files.studybuddyasia.com/uploads/1/3/1/8/131871859/tipojaj-jinijanu.pdfIn PDF document text
- http://files.dancesummit.ca/uploads/1/3/2/7/132710787/7473585.pdfIn PDF document text
- http://files.kimberlyjherb.com/uploads/1/3/1/4/131407734/6aaa27c09255.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2603/9463/files/1977927567.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4815/7859/files/pupuwajajabirobavixovebe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8977/2187/files/85967945439.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4018/7303/files/korafojalemunawadit.pdfIn PDF document text
- https://vagiseni.files.wordpress.com/2020/06/desunusazapixufixugefege.pdfIn PDF document text
- https://setuduf.files.wordpress.com/2020/07/61432594788.pdfIn PDF document text
- https://pilelebomu.files.wordpress.com/2020/06/zilinafinujidazavesowa.pdfIn PDF document text
- https://fazagov.files.wordpress.com/2020/07/witemekovufefuwo.pdfIn PDF document text
- https://jafujanile.files.wordpress.com/2020/07/sozoredolifirufefez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6139/5102/files/woligiwugiziwalel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/xaleli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxupajajivamuwiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mufuma.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/90554838216.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57790570823.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8461/9680/files/49998097481.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1009/7313/files/22434054891.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000078f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78F4 | 4480 bytes |
SHA-256: a317f9a93f5d506b6f0405a187a398b1d65777b766f5db077ccc45462ede6746 |
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font_01_sfnt_off00008838.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8838 | 9932 bytes |
SHA-256: d0fb28d9856aca2db46549aba4204f279fbd6b3d30578f09f13f265df33e61de |
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